CN101793457B - Vertical gravity conveying enforced cross-flow drying method and device - Google Patents
Vertical gravity conveying enforced cross-flow drying method and device Download PDFInfo
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- CN101793457B CN101793457B CN2010101611659A CN201010161165A CN101793457B CN 101793457 B CN101793457 B CN 101793457B CN 2010101611659 A CN2010101611659 A CN 2010101611659A CN 201010161165 A CN201010161165 A CN 201010161165A CN 101793457 B CN101793457 B CN 101793457B
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Abstract
The invention relates to a vertical gravity conveying enforced cross-flow drying method and a device. The invention is suitable for removing surface moisture from particle materials by utilizing hot air in the industries of mine, building materials, metallurgy, ceramics, chemical engineering and the like, and is also suitable for removing moisture from particle materials by utilizing hot air in the industries of foodstuff and feedstuff. The invention has the following technical scheme: hot airflow suitable for the dried material temperature is enforced into a storehouse; under the positive action of the external pressure, the hot airflow penetrates through the voids among the granules and is discharged out of the storehouse; the hot airflow and the material contact each other and exchange heat when the hot airflow penetrates through the voids among the granules; thus, the material temperature is increased, the moisture is evaporated, and the generated water vapor is discharged out of the storehouse along with the airflow; and under the action of gravity, the material on the same cross section in the drying storehouse continuously descends, and is continuously penetrated through and dried by the hot air in the descending process. Due to the adoption of the vertical gravity descending conveying, the invention is simple and reliable in structure; due to the adoption of the drum suction mode with multiple sets of positive pressure chambers and negative pressure chambers which are vertically arranged, the invention strengthens the airflow penetration capability, so that the airflow completely penetrates through the material, thereby enhancing the thermal efficiency; the flaky pastry mode increases the flow penetration drying area and enhances the yield; and since the material is dried in the descending process, the invention has the advantages of small disturbance, little exhaust dust and low pollution.
Description
Technical field
The present invention relates to a kind of vertical gravity conveying enforced cross-flow drying method and equipment; Be applicable to that industries such as mine, building materials, metallurgy, pottery, chemical industry utilize hot blast to remove the granule materials free moisture, be applicable to that also grain, feedstuff industry utilize hot blast to remove granule materials moisture.
Background technology
At present; The domestic existing drying equipment that is used for industries such as mine, building materials, metallurgy, pottery, chemical industry mainly contains following kind: cylindrical drier, fluidized-bed drying machine, Vibratingfluidbeddrier, vibrating mixed flow drying machine, support plate drying machine or the like; There is different defects in these equipment; The drying time that has is short, yields poorly, and can not satisfy such as high yield demands such as coals; The employing high temperature drying that has makes the low ignition point material such as brown coal iso-metamorphism or burning easily, and is prone to produce blast; The complex structure that has; Have owing to adopt vibrating mechanism, parts are fragile or the like.The domestic existing granule materials drying equipment that is used for industries such as grain, feed mainly adopts box drier, band drier, fluid bed dryer or the like, also has different defects, and is low like the thermal efficiency, yield poorly etc.
Summary of the invention
The object of the invention provides a kind of vertical gravity conveying enforced cross-flow drying method and equipment, and simple in structure, reliable, low power consuming, efficient be high, it is little to pollute, and solves the problems referred to above that exist in the background technology.
Technical scheme of the present invention:
A kind of vertical gravity conveying enforced cross-flow drying method may further comprise the steps:
⑴ will need dry material to fall into from top to bottom in the airtight dry warehouse;
⑵ have suitable by in the thermal current of the dry material temperature pressure entering warehouse;
⑶ thermal current passes the space between material particles under the positive action of ambient pressure, discharge then outside the warehouse;
⑷ thermal current contacts with material when the space of passing between material particles and carries out heat exchange, and temperature of charge is raise, water evaporates, and the steam of generation is discharged outside the warehouse with air-flow;
⑸ the material in the dry warehouse on the same cross section constantly sinks under the gravity effect simultaneously, in the process of sinking constantly by the thermal current cross-flow drying;
⑹ dried material is discharged outside the warehouse, material constantly by enterprisingly go into warehouse, warehouse is constantly discharged in dry back, the entering of material and discharge utilize gravity to sink to carrying.
Said ambient pressure comprises malleation, negative pressure, and the present invention can use malleation or negative pressure to heat air-flow separately and pass the space between material particles, also can use malleation or negative pressure to heat air-flow simultaneously and pass the space between material particles.
In order to improve the effect of thermal current enforced cross-flow, thermal current is blasted in the warehouse by airflow inlet with air blast, uses induced draft blower withdraws at air stream outlet simultaneously, through air blast, air inducing enforced cross-flow.
In dryness storehouse, being provided with plemum communicates with airflow inlet; Being provided with negative pressure chamber communicates with air stream outlet; Need dry material to be full of in the space between plemum and the negative pressure chamber, be referred to as supplies room, thermal current blasts the plemum in the warehouse by the outside; Make it to produce malleation, the negative pressure chamber in the warehouse is because the effect of outside induced draft blower withdraws produces negative pressure simultaneously.
The plemum of dry warehouse be that many groups are arranged with negative pressure chamber, organizes plemum and negative pressure chamber in the set inside of warehouse more, and material that need drying is full of in the supplies room that plemum and negative pressure chamber surrounded.
Need dry material by top through spiral or vane type distributing device to falling into periphery in the airtight dry warehouse, and be full of warehouse from top to bottom and organize the supplies room that plemum and negative pressure chamber surround more.
Plemum, negative pressure chamber are provided with a plurality of holes, are communicated with supplies room, are convenient to thermal current and pass, and dried material is discharged by the impeller discharger.
The present invention can also rely on attaches dress vibrations equipment, produces vibration such as vibratory equipments such as electromagnetic vibrator, mechanical vibrator, hopper wall vibrator, vibrating motors, is used to improve material vertical subsidence situation, and the activation material increases the ability that air-flow penetrates material.
A kind of vertical gravity conveying enforced cross-flow drying equipment comprises distributing device, dry warehouse, the discharger arranged from top to bottom, and dry warehouse is provided with plemum, negative pressure chamber, and the space between plemum and the negative pressure chamber is for placing the supplies room of dried material.
The present invention is provided with air blast, air-introduced machine; Dry warehouse is provided with air inlet, exhaust outlet, air intake house steward, air draft house steward; Air blast, air-introduced machine are connected with air intake house steward, air draft house steward respectively; Then through air inlet, exhaust outlet respectively with dry warehouse in plemum, negative pressure chamber be communicated with, through air blast, air inducing enforced cross-flow, thermal current blasts the plemum in the warehouse by air blast from the outside; Make it to produce malleation, the negative pressure chamber in the warehouse is because the effect of outside induced draft blower withdraws produces negative pressure simultaneously.
The transverse cross-sectional profile of dry warehouse is a rectangle, also can be circular, or other shape, and dry warehouse can be fixed on frame or the base.
Dry warehouse be transverse cross-sectional profile rectangular, be with the steel square structure of insulation layer all around, inwardly close up respectively in its top and bottom, distributing device is installed on top, discharger is installed in the bottom.
The straight section position is equipped with vertically disposed many group plemums, negative pressure chamber in the dry warehouse, leaves the certain intervals space between two Room, and the clearance space vertical cross-section is up-small and down-big isosceles trapezoid, and is wide with casing, is material whereabouts passage.
Many groups are arranged in the dry warehouse plemum and negative pressure chamber are vertical array; Laterally wide with casing, form the multilayer drying layer of vertical multi-layer steamed bread shape of placing, become plemum that many groups arrange and negative pressure chamber to put organizing number is that 1～N organizes; The transverse cross-sectional profile of dry warehouse is a rectangle; Also can be circular, or other shape, dry warehouse is fixed on frame or the base.
Plemum, negative pressure chamber are made up of steel skeleton and porous plate; The material of considering clearance space has little dust granules through porous plate entering plemum, negative pressure chamber; Plemum, negative pressure chamber lower end are the opening shape, communicate with the supplies room lower end, are used for dust settling and return supplies room.
Be provided with vibrations equipment and damping base, vibratory equipment is installed in the dryness storehouse side and helps, and damping base is installed on the frame, supports dry warehouse, and damping.
Distributing device adopts the helical blade structure, and is divided into left and right sides spiral, and its housing has four equally spaced feed openings, makes blanking even.
Discharger adopts blade wheel structure, according to the warehouse width two cover dischargers, three cover dischargers can be set, and to reduce lower box closing in angle, guarantees that the material subsidence velocity on the same cross section is consistent in the dry warehouse.
Become plemum that many groups arrange and negative pressure chamber upper end, lower ends to leave certain space and be used to form certain material thickness, be used for sealing, prevent that air-flow from overflowing from here.
The vertical gravity conveying enforced cross-flow drying equipment can be made up of many cover systems according to throughput requirements, embarks on journey or becomes to be listed as and arrange.
Beneficial effect of the present invention: compared with prior art, it adopts vertical gravity to sink to carrying, and is simple and reliable for structure; Adopt vertically disposed many group plemums, negative pressure chamber's drum suction mode, strengthened air-flow percolation ability, make air-flow pass completely through material, improved the thermal efficiency; The multi-layer steamed bread mode has increased the cross-flow drying area, has improved output; Material is dry in sinking, receives disturbance little, and the exhaust dust is few, pollutes little.
The present invention can adopt the high-temperature resistant particle material of industry≤50mm such as the dry coal of high-temperature gas, mine, building materials, metallurgy; The granule materials of industry≤50mm such as dry brown coal of cryogenic gas and grain, feed in can adopting.
The present invention has following characteristics:
⑴ utilize drum suction effect to force thermal current to pass through material in complete sealed space, and drying efficiency is high.
⑵ adopt multi-layer steamed bread formula drying layer, and drying area is big, and output is high.
⑶ adopt gravity effect convey materials, and material same cross section in the dry warehouse sinks the uniform drying of being heated naturally.
⑷ can adjust the discharge rate of discharger according to by dry material character and requirement drying time thereof, the time that prolongation or shortening material stop in dry warehouse.
⑸ equipment adopts vertical structure, and floor space is little.
⑹ do not had other mechanical passive actions by dry material except that pan feeding and discharging, it is very little to wear and tear.
⑺ material is dry in sinking, receives disturbance little, and the exhaust dust is few, pollute little, no explosion danger, safe and reliable.
⑻ except that cloth and discharger and vibrator, and equipment itself does not have other drive disk assemblies, and equipment operates steadily, and does not have noise.
Description of drawings:
Fig. 1 is the Facad structure sketch map of the embodiment of the invention one;
Fig. 2 is the side structure sketch map of the embodiment of the invention one;
Fig. 3 is the Facad structure sketch map of the embodiment of the invention two;
Fig. 4 is the side structure sketch map of the embodiment of the invention one;
Fig. 5 is the structural representation of the embodiment of the invention in the air inducing position;
Fig. 6 is the structural representation of the embodiment of the invention in the air blast position;
Fig. 7 is air blast, the air inducing partial enlarged drawing of the embodiment of the invention;
Fig. 8 is three discharger structural representations of the embodiment of the invention three;
Fig. 9 is two discharger structural representations of the embodiment of the invention four;
Figure 10 is the distributing device structural representation of the embodiment of the invention.
Among the figure: distributing device 1, dry warehouse 2, negative pressure chamber 3, plemum 4, frame 5, discharger 6, exhaust outlet 7, air inlet 8, air draft house steward 9, air intake house steward 10, vibrations equipment 11, damping base 12, right-hand screw leaf 13, feed hopper 14, left-hand screw leaf 15, casing 16, spiral rachis 17, decelerator 19, material 20, porous plate 21.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is described further through embodiment
In an embodiment, vertical gravity conveying enforced cross-flow drying method may further comprise the steps:
(referring to accompanying drawing 1,3) will need dry material is airtight dry warehouse 2 in through auger type distributor 1 to falling into periphery by top, and is full of the plemum 4 and negative pressure chamber 3 adjacent spaces spaces that becomes many group arrangements in the warehouse from top to bottom; When being full of by material 20 in the dry warehouse 2; Having (seeing accompanying drawing 6) is fit to by the thermal current of dry material temperature by the outside through the air intake house steward 10 who is positioned at dry warehouse 2 both sides, the plemum 4 that air inlet 8 blasts warehouse 2; Make it to produce malleation, the negative pressure chamber 3 in the warehouse of (seeing accompanying drawing 5) simultaneously 2 are because outside air-introduced machine produces negative pressure through exhaust outlet 7, the effect that is positioned at air draft house steward 9 suctions of dry warehouse 2 both sides; Described thermal current comprise the clean hot-air through heat exchange, hot flue gas and other suitable contain hot gas; Thermal current (seeing accompanying drawing 7) is passed the space between the material bed material particles of 3 of plemum 4 and negative pressure chamber through the porous plate on it by plemum 4 under the bulging suction effect of malleation and negative pressure, get into negative pressure chamber 3 and discharge outside the warehouses 2 through exhaust outlet 7, air draft house steward 9; Thermal current contacts with material when the space of passing between material bed material particles and carries out heat exchange, and temperature of charge is raise, water evaporates, and the steam of generation gets into negative pressure chamber 3 with air-flow and discharges outside the warehouses 2; Material under the gravity effect in the dryness storehouse body same cross section constantly sink; When sinking constantly by the hot blast cross-flow drying; Dried material is discharged by the impeller discharger that is positioned at dry warehouse 2 bottoms 6; Have again simultaneously new need dried material by top through auger type distributor 1 in falling into dryness storehouse body 2, like this material constantly get into, constantly discharge, dry run is carried out continuously.
The plemum 4 that in dry warehouse 2, becomes many groups to arrange leaves certain space with negative pressure chamber 3 upper ends, lower end and is used to form certain material thickness; Be used for sealing; Prevent that air-flow from overflowing from here, the vertically disposed plemum 4 of many simultaneously groups and negative pressure chamber 3 are wide with dry warehouse 2, and with dry warehouse 2 sealings; Make that thermal current can only be by seeing through porous plate 21 in the plemum 4, pass in the material bed arrival negative pressure chamber 3; Thermal current flows to the negative pressure section by the malleation section, and the ability of passing through material strengthens, and organizes the space that vertically disposed plemum 4 and negative pressure chamber 3 form multilayers more, and drying area increases exponentially.
Embodiment one
With reference to accompanying drawing 1,2; Vertical gravity carries drum enforced cross-flow drying equipment to comprise left and right sides spiral distributor 1, dry warehouse 2, negative pressure chamber 3, plemum 4, frame 5, impeller discharger 6, exhaust outlet 7, air inlet 8, air draft house steward 9, air intake house steward 10; Wherein dry warehouse 2 is transverse cross-sectional profile steel square rectangular, insulation layer all around a structure, inwardly closes up respectively in its top and bottom; Plemum 4 is organized vertical array in the straight section of dry warehouse 2 with negative pressure chamber more than 3, and is wide with dry warehouse 2, and certain clearance space is arranged between two Room, and the clearance space vertical cross-section is up-small and down-big isosceles trapezoid; Air intake house steward 10, air draft house steward 9 are arranged in the both sides of dry warehouse 2, and communicate with negative pressure chamber 3 with plemum 4 through air inlet 8, exhaust outlet 7 respectively; Left and right sides spiral distributor 1 (referring to accompanying drawing 10) is made up of right-hand screw leaf 13, feed hopper 14, left-hand screw leaf 15, casing 16, spiral rachis 17, decelerator 19 etc., is installed in dry warehouse 2 tops, and wherein casing 16 lower ends have four blanking ports 18.Discharger 6 is a blade wheel structure, is installed in the bottom of dry warehouse 2, is single discharger structure.
Embodiment two
With reference to accompanying drawing 3,4, present embodiment has realized that dry warehouse 2 receives 11 effects of vibrations equipment to produce vibration, is used to improve material vertical subsidence situation, and the activation material increases the ability that air-flow penetrates material.
Be with embodiment one difference: damping base 12 is installed on the frame 5; Dry warehouse 2 is installed on the damping base 12; Dry warehouse 2 attaches the vibrations of being equipped with equipment 11, and vibrations equipment 11 can be for such as electromagnetic vibrator, mechanical vibrator, hopper wall vibrator, vibrating motor etc.Damping can adopt a formula or suspension type to be installed on the damping base.
Embodiment three
With reference to accompanying drawing 8, in the 3rd embodiment, three dischargers can be set according to the warehouse width, to reduce warehouse bottom closing in angle, guarantee that same cross section material subsidence velocity is consistent in the dry warehouse.
Embodiment four
With reference to accompanying drawing 9, in the 3rd embodiment, two dischargers can be set according to the warehouse width, to reduce warehouse bottom closing in angle, guarantee that same cross section material subsidence velocity is consistent in the dry warehouse.
Claims (2)
1. vertical gravity conveying enforced cross-flow drying equipment; It is characterized in that comprising distributing device (1), dry warehouse (2), the discharger (6) arranged from top to bottom; Dry warehouse is provided with plemum (4), negative pressure chamber (3), leaves certain space between plemum and the negative pressure chamber for placing the supplies room of dried material (20); Also be provided with air blast, air-introduced machine; Dry warehouse is provided with air inlet (8), exhaust outlet (7), air intake house steward (10), air draft house steward (9); Air blast, air-introduced machine are connected with air intake house steward, air draft house steward respectively; Then through air inlet, exhaust outlet respectively with dry warehouse in plemum (4), negative pressure chamber (3) be communicated with, through air blast, air inducing enforced cross-flow; The straight section position is equipped with vertically disposed many group plemums, negative pressure chamber in the dry warehouse, leaves the certain intervals space between two Room, and the clearance space vertical cross-section is up-small and down-big isosceles trapezoid, and is wide with dry warehouse, is material whereabouts passage; Many groups are arranged in the dry warehouse plemum and negative pressure chamber are vertical array; Plemum and negative pressure chamber are laterally wide with dry warehouse; Form the multilayer drying layer of vertical multi-layer steamed bread shape of placing; It is that 1～N organizes that the group number is put by plemum that the many groups of one-tenth are arranged and negative pressure chamber, and the transverse cross-sectional profile of dry warehouse is rectangle or circle, and dry warehouse is fixed on frame or the base; Plemum, negative pressure chamber are made up of steel skeleton and porous plate; The material of considering clearance space has little dust granules through porous plate entering plemum, negative pressure chamber; Plemum, negative pressure chamber lower end are the opening shape, communicate with the supplies room lower end, are used for dust settling and return supplies room.
2. the vertical gravity conveying enforced cross-flow drying equipment according to claim 1 is characterized in that distributing device adopts the helical blade structure, and is divided into left and right sides spiral that its housing has four equally spaced feed openings, makes blanking even; Discharger adopts blade wheel structure, according to dry warehouse width two cover dischargers or three cover dischargers is set, and to reduce lower box closing in angle, guarantees that the material subsidence velocity on the same cross section is consistent in the dry warehouse; The vertical gravity conveying enforced cross-flow drying equipment is made up of many cover systems according to throughput requirements, embarks on journey or becomes to be listed as and arrange.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010101611659A CN101793457B (en) | 2010-05-04 | 2010-05-04 | Vertical gravity conveying enforced cross-flow drying method and device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010101611659A CN101793457B (en) | 2010-05-04 | 2010-05-04 | Vertical gravity conveying enforced cross-flow drying method and device |
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| CN101793457A CN101793457A (en) | 2010-08-04 |
| CN101793457B true CN101793457B (en) | 2012-08-08 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| RU2506508C2 (en) * | 2011-11-07 | 2014-02-10 | Общество с ограниченной ответственностью "Тёплый ветер" | Shaft-type airslide drier |
| CN110756271B (en) * | 2019-10-30 | 2021-08-20 | 福州康来生物科技有限公司 | Peach gum production is with dry integration equipment of smashing with even drying function |
| CN111306894A (en) * | 2019-11-21 | 2020-06-19 | 利辛县风雅颂机电科技有限公司 | A drying device for compound fertilizer |
| CN111174560A (en) * | 2020-01-07 | 2020-05-19 | 杨文耀 | Dispersing, blanking and drying device for grains |
| CN111238210A (en) * | 2020-01-16 | 2020-06-05 | 于国玺 | Unloading drying device of matrimony vine |
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| GB707799A (en) * | 1952-02-14 | 1954-04-21 | Vickers Electrical Co Ltd | Improvements relating to the dielectric heating of materials |
| CN2181655Y (en) * | 1993-11-09 | 1994-11-02 | 李恩德 | Chimney-free grain drying boiler |
| CN1114041A (en) * | 1994-06-09 | 1995-12-27 | 吴军港 | Grain drier |
| WO2001002786A1 (en) * | 1999-06-07 | 2001-01-11 | Reed Steven C Sr | Method and apparatus for drying grain |
| CN201662307U (en) * | 2010-05-04 | 2010-12-01 | 王文民 | Vertical gravity conveying compulsory cross-flow drying device |
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2010
- 2010-05-04 CN CN2010101611659A patent/CN101793457B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB707799A (en) * | 1952-02-14 | 1954-04-21 | Vickers Electrical Co Ltd | Improvements relating to the dielectric heating of materials |
| CN2181655Y (en) * | 1993-11-09 | 1994-11-02 | 李恩德 | Chimney-free grain drying boiler |
| CN1114041A (en) * | 1994-06-09 | 1995-12-27 | 吴军港 | Grain drier |
| WO2001002786A1 (en) * | 1999-06-07 | 2001-01-11 | Reed Steven C Sr | Method and apparatus for drying grain |
| CN201662307U (en) * | 2010-05-04 | 2010-12-01 | 王文民 | Vertical gravity conveying compulsory cross-flow drying device |
Non-Patent Citations (2)
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